Oki OKIOFFICE44 Service Manual page 267

A01 to A18
CASH-N/CASL-N/
RASI-N
RD-N/WRL-N
+24V
RP/PP
F12VON
circuit
MDMRD-N/
MDWR-N
Figure A3.1.3 Block Diagram of DRAM/Flash Memory/Mask ROM and Real-time Clock IC
Board Descriptions
RAM2
RAM1
DRAM
512 KB
FLS
Flash
memory
512 KB
MASK
Mask ROM
512 KB
X2
Real time
clock IC
32.768 KHz
Back up
battery
RTCCS
circuit
A - 25
IC3
OKIOFFICE 44 Serv. Man., P/N 59276801
AD00 to AD15